Ladder drum for a horizontal blind assembly



FIG. 1 is a top perspective view of a ladder drum for a horizontal blind assembly showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a front elevational view thereof, the rear elevational view being a mirror image thereof. 

The ornamental design for a ladder drum for a horizontal blind assembly, as shown and described. 